Physical Chromosome Mapping

**Definition:** Mapping of the linear order of genes on a chromosome with units indicating their distances by using methods other than genetic recombination. These methods include nucleotide sequencing, overlapping deletions in polytene chromosomes, and electron micrography of heteroduplex DNA. (From King & Stansfield, A Dictionary of Genetics, 5th ed)

**Tree numbers:** - E05.393.183.620

**Synonyms:** - Chromosome Mapping, Physical - Physical Mapping (Genetics)